World

Find all of the PBS NewsHour’s international reporting and analysis.

LONDON | Another day. Another clear blue sky. And another cancelled flight because of what's lurking above that clear blue sky. I was just about to write this post, about the airport closings, the delays, the crammed ferry landings,…

The Icelandic volcano, located under a glacier, is spewing water vapor and fine-grained ash that can be damaging to aircraft engines. Derrick Ryall of the British Meteorological Office explains the challenges of measuring the size of the plume, where it…